@import "reset.css";
@import "public.css";
#banner {
  height: 350px;
  width: 1180px;
  position: relative;
  overflow: hidden;
  margin-bottom: 50px;
}
#header .right input{
  width: 138px;
}
#banner ol {
  width: 7080px;
  height: 350px;
  position: absolute;
  top: 0;
  left: 0;
}
#banner ol li {
  float: left;
}
#banner ul {
  position: absolute;
  top: 50px;
  right: 20px;
  background: #000;
  opacity: 0.6;
  height: 250px;
  width: 198px;
  border-radius: 5px;
  padding: 22px 0 0 20px;
  box-sizing: border-box;
}
#banner ul li {
  cursor: pointer;
  line-height: 34px;
  color: #e4e4e4;
}
#banner ul li.active {
  color: #71ffde;
}
#banner ul li.active span {
  opacity: 1;
}
#banner ul li span {
  opacity: 0;
  margin-right: 5px;
}
#course {
  margin-bottom: 30px;
}
#course > div {
  height: 44px;
}
#course > div h3 {
  height: 20px;
  line-height: 20px;
  font-size: 18px;
  float: left;
  border-left: 6px solid #74c6b3;
  padding-left: 5px;
}
#course > div span {
  float: right;
  color: #74c6b3;
  font-size: 12px;
  cursor: pointer;
}
#course ul {
  height: 490px;
}
#course ul li {
  cursor: pointer;
  height: 225px;
  width: 280px;
  border-radius: 5px;
  background: #f8f8f8;
  float: left;
  margin: 0 20px 20px 0;
}
#course ul li:nth-child(4),
#course ul li:nth-child(8) {
  margin-right: 0;
}
#course ul li div:nth-child(1) {
  height: 163px;
  position: relative;
}
#course ul li div:nth-child(1) img {
  position: absolute;
  left: 0;
  top: 0;
  width: 280px;
  height: 163px;
}
#course ul li div:nth-child(1) span:nth-child(2) {
  position: absolute;
  background: #000;
  opacity: 0.3;
  height: 33px;
  width: 72px;
  left: 0;
  top: 0;
  border-bottom-right-radius: 11px;
  text-align: center;
  line-height: 33px;
  color: #f8f2ff;
  font-size: 12px;
}
#course ul li div:nth-child(1) span:nth-child(3) {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 270px;
  background: #000;
  opacity: 0.5;
  line-height: 33px;
  color: #f8f2ff;
  padding-left: 10px;
}
#course ul li div:nth-child(2) {
  height: 62px;
  padding: 0 5px 0 10px;
}
#course ul li div:nth-child(2) p:nth-child(1) {
  float: left;
}
#course ul li div:nth-child(2) p:nth-child(1) span:nth-child(1) {
  display: block;
  line-height: 36px;
  font-size: 14px;
}
#course ul li div:nth-child(2) p:nth-child(1) span:nth-child(2) {
  color: #888;
  font-size: 12px;
  line-height: 12px;
}
#course ul li div:nth-child(2) p:nth-child(2) {
  float: right;
  height: 30px;
  width: 86px;
  background: #74c6b3;
  color: #fff;
  font-size: 16px;
  line-height: 30px;
  text-align: center;
  border-radius: 5px;
  margin-top: 22px;
}
#wechat {
  margin-bottom: 50px;
}
#test {
  margin-bottom: 30px;
}
#test > div {
  height: 44px;
}
#test > div h3 {
  height: 20px;
  line-height: 20px;
  font-size: 18px;
  float: left;
  border-left: 6px solid #74c6b3;
  padding-left: 5px;
}
#test > div span {
  float: right;
  color: #74c6b3;
  font-size: 12px;
  cursor: pointer;
}
#test ul {
  height: 490px;
}
#test ul li {
  height: 223px;
  width: 380px;
  border-radius: 5px;
  background: #f8f8f8;
  float: left;
  margin: 0 20px 20px 0;
}
#test ul li:nth-child(3),
#test ul li:nth-child(6) {
  margin-right: 0;
}
#test ul li div:nth-child(1) {
  height: 163px;
  position: relative;
}
#test ul li div:nth-child(1) img {
  position: absolute;
  left: 0;
  top: 0;
}
#test ul li div:nth-child(1) > span:nth-child(2) {
  position: absolute;
  background: #000;
  opacity: 0.3;
  height: 33px;
  width: 72px;
  left: 0;
  top: 0;
  border-bottom-right-radius: 11px;
  text-align: center;
  line-height: 33px;
  color: #f8f2ff;
  font-size: 12px;
}
#test ul li div:nth-child(1) p {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 342px;
  background: #000;
  opacity: 0.3;
  line-height: 33px;
  color: #f8f2ff;
  padding-left: 10px;
  padding-right: 28px;
}
#test ul li div:nth-child(1) p span:nth-child(1) {
  float: left;
}
#test ul li div:nth-child(1) p span:nth-child(2) {
  float: right;
}
#test ul li div:nth-child(2) {
  height: 62px;
  padding: 0 5px 0 10px;
}
#test ul li div:nth-child(2) p:nth-child(1) {
  float: left;
}
#test ul li div:nth-child(2) p:nth-child(1) span {
  margin-top: 12px;
  display: block;
  line-height: 20px;
  font-size: 14px;
}
#test ul li div:nth-child(2) p:nth-child(2) {
  float: right;
  height: 30px;
  width: 86px;
  background: #74c6b3;
  color: #fff;
  font-size: 16px;
  line-height: 30px;
  text-align: center;
  border-radius: 5px;
  margin-top: 22px;
}
#course1 {
  margin-bottom: 30px;
  height: 534px;
}
#course1 div.top {
  height: 44px;
}
#course1 div.top h3 {
  height: 20px;
  line-height: 20px;
  font-size: 18px;
  float: left;
  border-left: 6px solid #74c6b3;
  padding-left: 5px;
}
#course1 div.top span {
  float: right;
  color: #74c6b3;
  font-size: 12px;
  cursor: pointer;
}
#course1 div.bottom {
  height: 490px;
}
#course1 div.bottom ul {
  height: 490px;
  width: 895px;
  float: left;
}
#course1 div.bottom ul li {
  height: 224px;
  width: 280px;
  border-radius: 5px;
  background: #f8f8f8;
  float: left;
  margin: 0 20px 20px 0;
}
#course1 div.bottom ul li:nth-child(3),
#course1 div.bottom ul li:nth-child(6) {
  margin-right: 0;
}
#course1 div.bottom ul li div:nth-child(1) {
  height: 165px;
  position: relative;
}
#course1 div.bottom ul li div:nth-child(1) img {
  position: absolute;
  left: 0;
  top: 0;
  width: 280px;
  height: 163px;
}
#course1 div.bottom ul li div:nth-child(1) span:nth-child(2) {
  position: absolute;
  background: #000;
  opacity: 0.3;
  height: 33px;
  width: 72px;
  left: 0;
  top: 0;
  border-bottom-right-radius: 11px;
  text-align: center;
  line-height: 33px;
  color: #f8f2ff;
  font-size: 12px;
}
#course1 div.bottom ul li div:nth-child(1) span:nth-child(3) {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 270px;
  background: #000;
  opacity: 0.5;
  line-height: 33px;
  color: #f8f2ff;
  padding-left: 10px;
}
#course1 div.bottom ul li div:nth-child(2) {
  height: 62px;
  padding: 0 5px 0 10px;
}
#course1 div.bottom ul li div:nth-child(2) p:nth-child(1) {
  float: left;
}
#course1 div.bottom ul li div:nth-child(2) p:nth-child(1) span:nth-child(1) {
  display: block;
  line-height: 36px;
  font-size: 14px;
}
#course1 div.bottom ul li div:nth-child(2) p:nth-child(1) span:nth-child(2) {
  color: #888;
  font-size: 12px;
  line-height: 12px;
}
#course1 div.bottom ul li div:nth-child(2) p:nth-child(2) {
  float: right;
  height: 30px;
  width: 86px;
  background: #74c6b3;
  color: #fff;
  font-size: 16px;
  line-height: 30px;
  text-align: center;
  border-radius: 5px;
  margin-top: 22px;
}
#course1 div.bottom > img {
  float: right;
  width: 285px;
}
#foot {
  height: 100px;
  margin-bottom: 36px;
}
#foot img {
  float: left;
  margin-right: 20px;
}
#foot img.last {
  margin: 0;
}
#return_top {
  position: fixed;
  bottom: 0;
  right: 15px;
  display: none;
}
#return_top img {
  margin-bottom: 6px;
  height: 70px;
  width: 70px;
  background: #ffefd6;
  border-radius: 4px;
}
